Transistion pipe adapter



FIG. 1 is a perspective view of a transition pipe adapter showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is an end elevational view thereof seen from the larger end; and

FIG. 4 is an end elevational view thereof seen from the smaller end. 

The ornamental design for a transition pipe adapter, as shown and described. 